- The Abilene and Wichita Falls District Offices will be closed Thursday, February 22, 2018.
This is the current Index of area designations set up by geological formation and field, docket numbers, and approved dates.
The page number provided in the index refers to the actual page in the Approved Tight Formation Area Certifications publication.
Complete listing of Approved Tight Formation Area Certifications (Section 101)
Last Updated: 1/11/2018 9:11:36 AM